Toothbrush



FIG. 1 is a perspective view of a toothbrush showing my new design;

FIG. 2 is a reduced front view of the toothbrush;

FIG. 3 is a reduced rear view of the toothbrush;

FIG. 4 is a reduced left side view of the toothbrush;

FIG. 5 is a reduced top view of the toothbrush; and,

FIG. 6 is a reduced bottom view of the toothbrush.

The broken lines in the FIGURES showing the bristles of the toothbrush are for illustrative purposes only and form no part of the claimed design. 

I claim the ornamental design for a toothbrush, as shown and described. 